CN220761036U - Servo turret with cycloid speed reduction function - Google Patents

Abstract

The utility model discloses a servo cutter tower with cycloid speed reduction, which comprises a cutter head and a cutter head driving mechanism, wherein the cutter head driving mechanism comprises an eccentric main shaft, a first cycloid disc, a second cycloid disc, an eccentric auxiliary shaft and a bearing, the first cycloid disc and the second cycloid disc are arranged in the cutter head, a first matching hole and a second matching hole are formed in the first cycloid disc and the second cycloid disc, the first matching hole is in running fit with the eccentric main shaft through the bearing, and the second matching hole is in running fit with the eccentric auxiliary shaft through the bearing. Compared with the prior art, the cycloid disc supporting and limiting device can improve the supporting and limiting capacity of the cycloid disc, further improve the stability of the motion of the cycloid disc, and simultaneously has good noise reduction effect.

Description

Servo turret with cycloid speed reduction function

Technical Field

The utility model relates to the technical field of tool turret, in particular to a servo tool turret with cycloid speed reduction.

Background

The numerical control tool rest is the most common auxiliary device of the numerical control lathe, and can enable the numerical control lathe to complete various and even all machining procedures in one-time clamping of a workpiece, so that the auxiliary time of machining is shortened, errors caused by multiple workpiece installation in the machining process are reduced, and the machining efficiency and the machining precision of a product are improved.

The utility model patent with the patent application number of CN202211396991.0 discloses a numerical control tool rest, which has large speed ratio and bearing capacity and more stable transmission by adopting an integrated single-tooth-difference cycloidal pin gear speed reduction design. In addition, the cycloidal pin gear has compact structure, can effectively reduce the axial installation size, thereby saving the axial space, further reducing the volume of the tool rest, reducing the weight of the tool rest and ensuring that the tool rest is more convenient to maintain and assemble and disassemble. However, the above technical solution has the following drawbacks:

as shown in fig. 1-2, in the prior art, a first wobble plate 1' and a second wobble plate 2' are provided with a through hole 3' through which a screw passes, and a clearance fit screw spacer 4' is arranged in the through hole, and in the process of swinging the first wobble plate 1' and the second wobble plate 2', the rotation of the first wobble plate 1' and the second wobble plate 2' is limited by each screw spacer 4 '. However, due to the higher rotation speed of the motor, the first wobble plate 1' and the second wobble plate 2' continuously perform high-frequency tangential circular motion on the screw spacer 4' and generate larger impact force, so that the stability of the first wobble plate 1' and the second wobble plate 2' is poor when the first wobble plate and the second wobble plate swing, and a large amount of noise is generated.

In view of this, the present applicant has made intensive studies with respect to the above problems, and has made the present utility model.

Disclosure of Invention

The utility model mainly aims to provide the servo cutter tower with cycloid speed reduction, which can improve the supporting and limiting capacity of cycloid discs, further improve the motion stability of the cycloid discs and has good noise reduction effect.

In order to achieve the above object, the solution of the present utility model is:

the utility model provides a take servo cutter tower of cycloid speed reduction, includes blade disc and blade disc actuating mechanism, blade disc actuating mechanism includes eccentric main shaft, first cycloid dish, second cycloid dish, eccentric auxiliary shaft and bearing, first cycloid dish with the second cycloid dish is established in the blade disc, all is equipped with on first cycloid dish and the second cycloid dish with first mating hole and second mating hole, through bearing normal running fit between first mating hole and the eccentric main shaft, through bearing normal running fit between second mating hole and the eccentric auxiliary shaft.

Further, the cutter head driving mechanism further comprises a motor and needle teeth, the eccentric main shaft is arranged on a power output shaft of the motor, needle teeth grooves for accommodating the needle teeth are formed in the inner side wall of the cutter head, first needle grooves are formed in the outer circumferential surface of the first swing wire disc, second needle grooves are formed in the outer circumferential surface of the second swing wire disc, and the first needle grooves and the second needle grooves are matched with the needle teeth.

Further, two second fit holes are arranged, the two second fit holes are symmetrically distributed on two sides below the first fit hole, and the circle centers of the first fit hole and the second fit hole are distributed in a regular triangle.

Further, the cutter head is sleeved on the oil cylinder shaft and the fixed shaft and is connected with the oil cylinder shaft in a rotating mode, the motor is arranged on the fixed shaft, and the front end of the eccentric main shaft is connected with the oil cylinder shaft in a rotating mode.

Furthermore, the oil cylinder shaft and the fixed shaft are provided with corresponding installation grooves, and two ends of the eccentric auxiliary shaft extend into the installation grooves and are in rotary connection with the installation grooves through bearings.

Further, a partition plate cover is arranged between the mounting groove and the bearing.

Further, the first cycloid disc and the second cycloid disc are provided with through holes for screws to pass through.

Compared with the prior art, the rotary cutter has the beneficial effects that the motor drives the eccentric main shaft to rotate so as to drive the first cycloid disc and the second cycloid disc to swing, thereby driving the cutter disc to rotate. In the driving process, the eccentric auxiliary shaft rotates along with the swinging of the first cycloid disc and the second cycloid disc, so that the first cycloid disc and the second cycloid disc are limited, and the rotation of the first cycloid disc and the second cycloid disc is avoided. In addition, through bearing zero clearance fit between eccentric auxiliary shaft and first cycloid dish and the second cycloid dish for the support strength of eccentric auxiliary shaft is higher, and first cycloid dish and second cycloid dish swing more steadily, thereby eliminated the noise that produces when first cycloid dish and second cycloid dish swing greatly, make the blade disc drive more silence, steady.

Drawings

Fig. 1 is a schematic cross-sectional structure of a turret according to the prior art.

Fig. 2 is a schematic view of a perforation structure in the prior art.

Fig. 3 is a schematic cross-sectional structure of the present utility model.

Fig. 4 is a schematic perspective view of a cutterhead driving mechanism.

Fig. 5 is another schematic perspective view of the cutterhead driving mechanism.

Fig. 6 is a schematic view of a mounting structure of the eccentric auxiliary shaft.

Fig. 7 is a schematic structural view of the cutterhead driving mechanism with the fixed shaft removed.

Fig. 8 is a schematic perspective view of a first wobble plate.

Fig. 9 is a perspective view of the outer structure of the eccentric auxiliary shaft.

In the figure:

cutter head 1, needle gear groove 11, eccentric main shaft 21, first wobble plate 22, first needle groove 221, second wobble plate 23, second needle groove 231, eccentric auxiliary shaft 24, bearing 25,

The motor 26, the needle teeth 27, the first fitting hole 31, the second fitting hole 32, the penetration hole 33, the cylinder shaft 41, the fixed shaft 42, the mounting groove 43, and the partition cover 44.

Detailed Description

In order to further explain the technical scheme of the utility model, the utility model is explained in detail by specific examples.

As shown in fig. 3-9, a servo cutter tower with cycloid speed reduction comprises a cutter disc 1 and a cutter disc driving mechanism, wherein the cutter disc driving mechanism comprises an eccentric main shaft 21, a first cycloid disc 22, a second cycloid disc 23, an eccentric auxiliary shaft 24 and a bearing 25, the first cycloid disc 22 and the second cycloid disc 23 are arranged in the cutter disc 1, a first matching hole 31 and a second matching hole 32 are formed in the first cycloid disc 22 and the second cycloid disc 23, the first matching hole 31 is in running fit with the eccentric main shaft 21 through the bearing 25, and the second matching hole 32 is in running fit with the eccentric auxiliary shaft 24 through the bearing 25. The cutterhead driving mechanism further comprises a motor 26 and needle teeth 27, the eccentric main shaft 21 is arranged on a power output shaft of the motor 26, needle teeth grooves 11 for accommodating the needle teeth 27 are formed in the inner side wall of the cutterhead 1, first needle grooves 221 are formed in the outer circumferential surface of the first wobble plate 22, second needle grooves 231 are formed in the outer circumferential surface of the second wobble plate 23, and the first needle grooves 221 and the second needle grooves 231 are matched with the needle teeth 27. Specifically, the utility model also comprises an oil cylinder shaft 41 and a fixed shaft 42, the cutter head 1 is sleeved on the oil cylinder shaft 41 and the fixed shaft 42 to be connected in a rotating way, the motor 26 is arranged on the fixed shaft 42, and the front end of the eccentric main shaft 21 is connected with the oil cylinder shaft 41 in a rotating way.

In this embodiment, two second fitting holes 32 are provided, the two second fitting holes 32 are symmetrically distributed on two sides below the first fitting hole 31, and the centers of the first fitting hole 31 and the second fitting hole 32 are in regular triangle distribution. After adopting above-mentioned structure, eccentric main shaft 21 and eccentric auxiliary shaft 24 can play the effect of support simultaneously when cycloid dish is swung, through above-mentioned subdivision setting, can disperse the effort when cycloid dish is swung, make the epaxial atress of each eccentric shaft more even, further promote the support strength of eccentric auxiliary shaft 24, make cycloid dish motion more steady.

Preferably, the cylinder shaft 41 and the fixed shaft 42 are provided with corresponding mounting grooves 43, two ends of the eccentric auxiliary shaft 24 extend into the mounting grooves 43, and a partition cover 44 is arranged between the mounting grooves 43 and the bearing 25 through the bearing 25 and the mounting grooves 43 in a rotating connection. After adopting above-mentioned structure, the both ends of eccentric auxiliary shaft 24 are fixed in hydro-cylinder axle 41 and fixed axle 42 internal rotation connection respectively for eccentric auxiliary shaft 24 is fixed more firmly and rotates more steadily, promotes auxiliary eccentric shaft's support strength and rotation stationarity, promotes the swing stationarity of first pendulum wire dish 22 and second pendulum wire dish 23 in turn.

More preferably, the first wobble plate 22 and the second wobble plate 23 are provided with through holes 33 for screws to pass through, so that the oil cylinder shaft 41 and the fixed shaft 42 are conveniently locked with each other by using the screws.

The working principle of the utility model is as follows: when the cutter is replaced, the motor 26 drives the eccentric main shaft 21 to rotate, and as the front end and the rear end of the eccentric main shaft 21 are respectively connected to the motor 26 and the oil cylinder shaft 41, the eccentric part of the eccentric main shaft 21 can drive the first wobble plate 22 and the second wobble plate 23 to swing up and down, and the first tooth groove and the second tooth groove can be meshed with the needle teeth 27 in the process of swinging the first wobble plate and the second wobble plate 23, so that the cutter changing disc 1 is driven to rotate. The driving principle is similar to that of a cycloidal pin gear speed reducer in the prior art, so that redundant description is omitted. When the first wobble plate and the second wobble plate 23 wobble, the eccentric auxiliary shaft 24 rotates along with the first wobble plate 22 and the second wobble plate 23 wobble, so that the first wobble plate 22 and the second wobble plate 23 are limited, and the first wobble plate 22 and the second wobble plate 23 are prevented from rotating. In addition, the eccentric auxiliary shaft 24 is in zero clearance fit with the first swaying disc 22 and the second swaying disc 23 through the bearings 25, so that the supporting strength of the eccentric auxiliary shaft 24 is higher, the first swaying disc 22 and the second swaying disc 23 swing more stably, noise generated when the first swaying disc 22 and the second swaying disc 23 swing is eliminated greatly, and the cutterhead 1 is driven more silently and stably.

The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.

Claims (7)

1. The utility model provides a take servo sword tower of cycloid speed reduction, includes blade disc and blade disc actuating mechanism, its characterized in that, blade disc actuating mechanism includes eccentric main shaft, first cycloid dish, second cycloid dish, eccentric auxiliary shaft and bearing, first cycloid dish with the second cycloid dish is established in the blade disc, all is equipped with on first cycloid dish and the second cycloid dish with first mating hole and second mating hole, through bearing normal running fit between first mating hole and the eccentric main shaft, through bearing normal running fit between second mating hole and the eccentric auxiliary shaft.

2. The servo turret with cycloidal speed reduction according to claim 1, wherein the cutterhead driving mechanism further comprises a motor and needle teeth, the eccentric main shaft is mounted on a power output shaft of the motor, needle tooth grooves for accommodating the needle teeth are formed in the inner side wall of the cutterhead, first needle grooves are formed in the outer circumferential surface of the first cycloidal disc, second needle grooves are formed in the outer circumferential surface of the second cycloidal disc, and the first needle grooves and the second needle grooves are matched with the needle teeth.

3. The servo turret with cycloidal speed reduction according to claim 2, wherein two second engaging holes are symmetrically distributed on two sides below the first engaging hole, and the centers of the first engaging hole and the second engaging hole are distributed in a regular triangle.

4. The servo turret with cycloidal speed reduction according to claim 3 further comprising an oil cylinder shaft and a fixed shaft, wherein the cutterhead is rotatably connected to the oil cylinder shaft and the fixed shaft in a sleeved mode, the motor is mounted on the fixed shaft, and the front end of the eccentric main shaft is rotatably connected to the oil cylinder shaft.

5. The servo turret with cycloidal speed reduction according to claim 4, wherein the cylinder shaft and the fixed shaft are provided with corresponding mounting grooves, and both ends of the eccentric auxiliary shaft extend into the mounting grooves and are rotatably connected with the mounting grooves through bearings.

6. The servo turret with cycloidal reduction according to claim 5 wherein a spacer cover is provided between the mounting groove and the bearing.

7. A servo turret with cycloidal deceleration according to claim 1, wherein the first cycloidal disc and the second cycloidal disc are provided with perforations for screws to pass through.